2015 NCAA Division II football season

The 2015 NCAA Division II football season, part of college football in the United States organized by the National Collegiate Athletic Association at the Division II level, began on September 4, 2015 and ended with the NCAA Division II Football Championship on December 19, 2015 at Children's Mercy Park in Kansas City, Kansas. Northwest Missouri State won its second national title in three seasons and fifth overall, defeating Shepherd, 34–7.

Conference changes and new programs
Northwestern Oklahoma State and Virginia–Wise completed their transitions to Division II and became eligible for the postseason.

Postseason
The 2015 NCAA Division II Football Championship Postseason involved 28 schools playing in a single-elimination tournament to determine the national champion of men's NCAA Division II college football. Miles College, the SIAC champion, was not eligible to postseason due to its participation to the 2015 Turkey Day Classic against Alabama State (FCS).

Playoff bracket
* Home team   † Overtime    Winner